| (19) |
 |
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(11) |
EP 3 106 832 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
19.04.2017 Bulletin 2017/16 |
| (43) |
Date of publication A2: |
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21.12.2016 Bulletin 2016/51 |
| (22) |
Date of filing: 17.05.2016 |
|
| (51) |
International Patent Classification (IPC):
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|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
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Designated Validation States: |
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MA MD |
| (30) |
Priority: |
29.05.2015 US 201514725964
|
| (71) |
Applicant: Northrop Grumman Systems Corporation |
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Falls Church, VA 22042-4511 (US) |
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| (72) |
Inventor: |
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- Ma, Yunqian
Oak Park, CA 91377 (US)
|
| (74) |
Representative: Jostarndt Patentanwalts-AG |
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Philipsstrasse 8
52068 Aachen
52068 Aachen (DE) |
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| |
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| (54) |
CROSS SPECTRAL FEATURE CORRELATION FOR NAVIGATIONAL ADJUSTMENT |
(57) A system includes a sensor to generate a first image having a first two-dimensional
image pixel data set. A database provides a second image having a second two-dimensional
image pixel data set that includes a three-dimensional positional data set describing
a navigational position of each pixel in the second two-dimensional image pixel data
set. A vision module includes an edge extractor to extract image edge features from
the first two-dimensional pixel data set and image edge features from the second two-dimensional
image pixel data set. The vision module includes a feature correlator to determine
a navigational position for each pixel in the first two-dimensional data set based
on an image edge feature comparison of the extracted edge features from the first
and second two-dimensional image pixel data sets.